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Stellar Occultation by (239977) 2001 QO329 on 2025-11-23 (22:40:45 UT)

CTU: Cross-track uncertainty (zero means: use the nominal prediction value, see event details below). Offsets and CTU all in mas.


Event Details
 Occultation UUID [and db] : c28bfb00-ddb8-11f0-547e-f36c7fbfd7da [observed]

 Occultation Date + Time   : 2025-11-23 at 22:40:45 UT +/- 0.07 min  [1]
 Object Designation        : (239977) 2001 QO329
 Star Designation          : GDR3 3327393322647276032
 Star Coordinates (ICRF)   : RA = 06 24 05.6860, DE = +09 30 36.415  [2]
 Star Magnitudes           : G = 12.89 mag, RP = 12.55 mag, BP = 13.1 mag
 Object Magnitude          : V = 20.71 mag
 Estimated Magnitude Drop  : 7.8 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 10.5 km/s
 Object Mean Diameter      : 3.0 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.3300 arcs/min @ PA = 263 deg
 Horizontal Parallax       : 3.3380 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 161° (sunlit = 12%), Sun = 143°
 Cross-track uncertainty   : 20.3 mas = 38 km = 12.93 path-width (1-sig)
 RUWE and duplicate source : 1.05 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#27
 Note                      : FP:true

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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